ive only contacted asus once via the form for sandy bridge replacement, i have received no letter either. i think if i send them a email like a above guy did they will reply..... but i might hold it off now as long as possible because ive heard there is a p67 rev3.1 board coming. maybe if i hold off right till the very end i will get a 3.1 version...i know my chances are thin, or maybe i can just ask them if they could replace it with a 3.1 and also tell them i would be willing to wait till the very end.
even tho both my asus pro and deluxe have worked flawlessly, i have a concern that a lot of the current p67 revisions are not perfect and there is something up with them as too many ppl are getting the same type of errors, and maybe asus know thats why they are bringing a 3.1 in?
edit. on second thoughts since both my boards have been fine although ive only tested them both for a few days, i think because so many ppl buy asus you will get more ppl highlighting faults.